The durability, low cost, and light weight of asphalt shingles are what has made the material a popular choice with homeowners. Asphalt shingles perform well against all types of weather but can become damaged over the years. Shingles that curl along their edges are a sign that you have some problems. Here is why it could be happening.

Water Damage

When water finds a way underneath your asphalt shingles, the moisture can cause damage that may cause the shingle to warp. This warping is most noticeable when the ends start to curl. How did water even get underneath your shingles?

Water damage can occur from an improper installation. If your climate is very cold in the winter, ice dams can also cause moisture to get underneath the shingles. This happens because a hot part of your roof melts the snow, which refreezes at another point in your roof where the temperature is colder. If enough ice forms, it can get underneath the shingles.

If ice dams caused the problem with your roof, a roofing contractor such as Leon Construction can fix the damage for you. They can even evaluate your current roof for how it ventilates and make the necessary adjustments so that there are not hot and cold spots.

Poor Installation

You need to be aware that shingles that have been installed improperly can cause issues with curling. You'll usually notice the issue soon after the shingles are installed, and this is a clear sign that the installation was the problem. The issue can come from the contractor nailing down the shingles too tightly, putting new shingles directly on top of old shingles, or installing the shingles in vertical rows instead of horizontal rows.

A roofing contractor can recommend a solution to the problem, which could involve doing some spot repairs that fix shingles that were not properly installed. In extreme situations, completely removing the new and old roof may be necessary so the contractor can start from scratch.

Age 

There will come a time where a shingle is just so old that it starts showing wear and tear in the form of curling. Since asphalt shingles are a cheap material, they won't last as long as clay or slate. If the roof is between 15–25 years old, the asphalt shingles may simply be ready to be replaced.

No matter what the situations is, if your asphalt shingles are failing, there is something that can be done about it. Have a roofing contractor give you a consultation about what repairs need to be made and take action if necessary.